Durrell Gerald. Rosy is My Relative

Rosy, the elephant bequeathed to young Adrian Rookwhistle by a reprobate relative, turns out to be a handful; not only because of her size but also because of her fondness for strong drink. To Adrian she represents the chance to get away from a city shop and a suburban lodging by exploiting her theatrical talent and experience. To Rosy their progress towards the gayer South Coast resorts offers undreamed-of opportunities for drink and destruction.
So the Monkspepper Hunt is driven to delirium and Lady Fenneltree’s stately home reduced to a shambles. In due course the constabulary catches up with the pair, whose ensuing trial is a triumph of the law and of Rosy’s enormous charm. The verdict is — but then the story has to be read to be believed, if then.
In spite of all this the author firmly maintains that his first novel is entirely credible, further that it is an almost true story!